My supply in the fridge is about 1 monthlong, need to store up b4 I go back to work next mth. My friend tells me that as long as you don't contaminate it, you can store longer, up to 6 months. What I do is that I separate the frozen meat and all with my bm. And I sealed all my bm in additional double zipped zip lock bag. I will freeze my bm once container is full to 'preserve' its freshness. My fridge now has devoted shelves for my bm.
Actually if can, best to nurse baby direct so that baby is getting the nutrients that he requires for growth daily..